1 XN-312-GW-CAN gateway1.2 Overview of functions16 Gateway XN-312-GW-CAN 06/16 MN050003-EN www.eaton.eu1.2 Overview of functionsXN-312-GW-CAN gateways can be used to connect a system bus toCANopen, and make it possible to access the data of up to 32 I/O modulesusing CANopen. Accordingly, these gateways can be integrated as modularfield bus modules into control systems that use this type of communication,making it possible to access the data of every single individual system busmodule from a PLC. The gateways feature a config check function that canbe activated with DIP switches. When this function is used, the gateway willcheck the I/O slice modules that are present on the system bus and comparethe resulting actual configuration with the previously stored target configura-tion. If the actual configuration is different from the target configuration, itwill not be possible for the gateway to switch to the "Operational" operatingstate.Figure 1: The XN-312-GW-CAN gateway can be used to establish a connection to a CANo-pen field bus.The connection to the field bus needs to be established by connecting anFMC 1.5/3-ST-3.5 three-pin connector to X1. An internal connection makes itpossible to directly connect an additional module to the field bus by connect-ing it to X2.The gateway's 24-V POW power supply needs to be connected to X3. Twoadditional terminals are connected in parallel.A system bus is used for data communication within the system block. ThePOW power supply is used to produce the power for the system bus, i.e., 5-V power for electronics and 24-V power for analog modules and specialtymodules.B
